CN220977651U - Broken line cantilever box type structure capable of providing pipeline bridge - Google Patents

Abstract

The utility model relates to a folding line cantilever box structure capable of allowing a pipeline to pass a bridge, which comprises folding line cantilevers and anti-collision walls, wherein the anti-collision walls are arranged on two sides of a box bridge main body, the folding line cantilevers extend outwards from one side of the box bridge main body, the folding line cantilevers are lower than a bridge deck, the anti-collision walls are arranged on the inner sides of the folding line cantilevers, sleeper beams are arranged on the outer sides of the folding line cantilevers, movable cover plates capable of allowing pedestrians to walk can be arranged between the anti-collision walls and the sleeper beams, cavity structures are formed by the anti-collision walls, the sleeper beams and the movable cover plates, the cavity structures penetrate through the whole length of the box bridge main body, pipelines capable of allowing the pipeline to pass can be arranged in the cavity structures, and reinforced concrete structures and steel plate structures are arranged at the joints of the folding line cantilevers and the box bridge main body; through moving down the cantilever of box section, form broken line structure, can satisfy the headroom demand that major diameter pipeline was arranged, adaptable pipeline and bridge floor not co-altitude's arrangement form simultaneously, solved the difficult problem that traditional box bridge can't arrange the different co-altitude Cheng Guanxian bridge crossing of major diameter.

Description

Broken line cantilever box type structure capable of providing pipeline bridge

Technical Field

The utility model relates to the field of bridge construction, in particular to a folding line cantilever box-shaped structure for pipeline bridging.

Background

In the construction of urban bridges, various pipelines often need to pass through the bridge. And the connection and the communication of the pipelines at the two sides are realized while the traffic at the two sides is connected. However, with the continuous development of economy, the diameters of pipelines needing to pass through the bridge are larger and larger, the types are more and more, the number of the pipelines is also increased, and the pipelines are limited in design elevation and have certain difference with the elevation of the bridge deck, so that the pipelines cannot be unified. The traditional arrangement method, namely the mode of arranging the pipelines below the pavement plates, cannot meet the requirements, the pavement height is too high due to forced arrangement, the material is increased and the stress is complex due to the increased height of the anti-collision wall, the sight of the bridge deck is blocked, the permeability is poor, the landscape effect is poor, the whole redesign of the passing pipelines can be caused, the influence range is wide, and certain economic waste is caused.

The application provides a broken line cantilever box section structure for a pipeline to pass a bridge, and the cantilever of the box section is downwards moved to be different from a bridge deck to be high to form a broken line, so that the clearance requirement of large-diameter pipeline arrangement can be met, and the broken line cantilever box section structure can adapt to the arrangement form of different heights of the pipeline and the bridge deck. Solves the problem that the traditional box section can not be provided with bridges with different diameters and Cheng Guanxian bridge crossing heights.

Disclosure of utility model

Based on the expression, the utility model provides a folding line cantilever box structure for pipeline bridging, and the cantilever of the box section is moved downwards to be different from the bridge deck to be in a folding line form, so that the clearance requirement of large-diameter pipeline arrangement can be met, and meanwhile, the box structure can adapt to the arrangement form of pipelines and bridge deck at different heights, and the problem that the bridge bridging with different heights Cheng Guanxian with large diameters cannot be arranged on the traditional box section is solved.

The technical scheme for solving the technical problems is as follows: a fold line cantilever box configuration for a pipeline bridge, comprising: broken line cantilever, anticollision wall, the anticollision wall sets up in the both sides of box bridge main part, the broken line cantilever follow box bridge main part one side extends to the outside, just the broken line cantilever is less than the bridge floor setting, the anticollision wall sets up the broken line cantilever is inboard, the broken line cantilever outside is provided with the sleeper beam, the anticollision wall with can set up the fly leaf that can supply the pedestrian to walk between the sleeper beam, anticollision wall, sleeper beam and fly leaf is formed with cavity structure, cavity structure runs through box bridge main part total length, can set up the pipeline that can supply the pipeline to pass in the cavity structure, the broken line cantilever with box bridge main part junction is provided with reinforced concrete structure and steel sheet structure.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the anti-collision wall is arranged on the box bridge main body, a first groove is formed in the top of the anti-collision wall and towards one side of the broken line cantilever, the first groove is L-shaped, a second groove is formed in the top of the sleeper beam and towards one side of the broken line cantilever, a railing is further arranged on the anti-collision wall and the upper portion of the sleeper beam, and two sides of the movable cover plate are respectively and movably arranged on the upper portions of the first groove and the second groove.

Further, the steel plate structure is pre-buried in broken line cantilever upper portion, steel plate structure top sets up can be used to fix the base of pipeline, the base with pipeline fixed connection.

Further, the reinforced concrete structure comprises anchoring steel bars, and the anchoring steel bars are welded with the steel plate structure.

Further, the reinforced concrete structure comprises U-shaped anchor bars and box girder steel bars, wherein the U-shaped anchor bars are respectively arranged at the connection parts of the sleeper beams, the anti-collision walls and the box bridge main body, the box girder steel bars are arranged along the box bridge main body, the box girder steel bars are provided with a plurality of rows, the lower ends of the U-shaped anchor bars below the sleeper beams are hooped with the box girder steel bars at the edges of the lower parts of the broken line cantilever arms, the lower sides of the anti-collision walls are also provided with anchoring point steel bars, and the lower ends of the U-shaped anchor bars are hooped with the box girder steel bars and the anchoring point steel bars.

Further, the reinforced concrete structure comprises a reinforcing inclined rib, the reinforcing inclined rib is arranged at the bending part of the folding line cantilever and the box bridge main body, hooks are arranged at two ends of the reinforcing inclined rib, and the hooks respectively hook the upper edge of the box bridge main body and the lower edge of the folding line cantilever.

Further, the reinforced concrete structure comprises a main rib, the main rib is arranged around the folding line cantilever, the edge of the folding line cantilever and the box girder steel bars at the side edges of the box space structure are hooped by the main rib, and the main rib forms a closed structure.

Further, the reinforced concrete structure comprises prestressed reinforcement, the prestressed reinforcement is arranged inside the broken line cantilever, the prestressed reinforcement penetrates through the length direction of the broken line cantilever, the two ends of the prestressed reinforcement are provided with staggered tools, one side, close to the box-shaped space structure, of the prestressed reinforcement is a tensioning end, and the other side is an anchoring end.

Further, the reinforced concrete structure comprises stirrups, the box space structure is further provided with a side web plate, the stirrups are arranged at the edges of the side web plate, and the stirrups hoop the side web plate and the box girder steel bars at the side edges of the box space structure to form a closed structure.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

1. According to the folding line cantilever box-shaped structure, the cantilever with the box-shaped section is downwards moved to be different from the bridge deck, so that a folding line form is formed, the problem of insufficient pavement clearance when a large-diameter pipeline passes through the bridge is solved, meanwhile, the height of an anti-collision wall is reduced, materials are saved, and the permeability of the bridge deck is increased;

2. By arranging the base and the pipeline, the problem of pipeline bridging under the condition of different design elevations of the pipeline and the bridge deck is solved;

3. The folding line cantilever box structure strengthens the overall stability of the folding line cantilever box structure by arranging the reinforcing diagonal bars, the prestressed steel bars, the U-shaped anchor bars, the box girder steel bars and the connection mode in the folding line cantilever box section.

Drawings

FIG. 1 is a schematic cross-sectional view of a broken-line cantilever box-type structure for pipeline bridging according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional structure of a broken-line cantilever reinforcement provided by an embodiment of the utility model;

Fig. 3 is a schematic cross-sectional structure of a broken line cantilever prestressed reinforcement provided by an embodiment of the present utility model;

1. A fold line cantilever; 11. a sleeper beam; 12. a removable cover; 13. a pipe; 14. a base; 2. an anti-collision wall; 3. a box bridge body; 31. a box-type space structure; 32. a web; 41. anchoring the steel bars; 42. u-shaped anchor bars; 43. box girder steel bars; 44. anchoring point ribs; 45. reinforcing the diagonal ribs; 46. a main rib; 47. anchoring the prestressed reinforcement; 471. an anchor; 48. stirrups; 49. lacing wires; 5. a steel plate structure; 6. railing.

Detailed Description

In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Embodiments of the application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", "surrounding", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the construction referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-3, the present embodiment provides a folding line cantilever box structure for pipeline bridging, comprising: fold line cantilever 1, anti-collision wall 2;

The anti-collision wall 2 is arranged on two sides of the box bridge main body 3, the folding line cantilever 1 extends outwards from one side of the box bridge main body 3, the folding line cantilever 1 is lower than the bridge deck, the anti-collision wall 2 is arranged on the inner side of the folding line cantilever 1, a sleeper beam 11 is arranged on the outer side of the folding line cantilever 1, a movable cover plate 12 for pedestrians to walk can be arranged between the anti-collision wall 2 and the sleeper beam 11, a cavity structure is formed by the anti-collision wall 2, the sleeper beam 11 and the movable cover plate 12, the cavity structure penetrates through the whole length of the box bridge main body 3, a pipeline 13 for a pipeline to pass through can be arranged in the cavity structure, and a reinforced concrete structure and a steel plate structure 5 are arranged at the joint of the folding line cantilever 1 and the box bridge main body 3. The broken line cantilever 1 refers to a cantilever structure arranged on the side surface of the box bridge main body 3, and the cantilever is not level with the bridge deck to form the broken line cantilever 1. The bolster 11 is a concrete member disposed at the outer end of the fold line cantilever 1 for supporting the deck plate 12 and providing a pavement guard. The outer side here refers to the direction extending along the width of the box bridge main body 3; the inner side is the position close to the center along the width direction of the box bridge main body 3, the fold line cantilever 1 is lower than the bridge deck, and is downwards bent when the fold line cantilever 1 extends outwards, a slope structure is formed with the box bridge main body 3, the slope structure is lower than the bridge deck, and the slope structure can accommodate the pipeline 13, so that the problem of space limitation during bridge crossing of large-diameter and multi-type pipelines is solved, the movable cover plate 12 is arranged above the fold line cantilever 1, namely the pipeline 13 adopts a hidden arrangement, the functionality is met, the landscape is not influenced, and the material is saved.

The box bridge main body 3 is provided with a box space structure 31 and a plurality of webs 32, the webs 32 divide the box space structure 31, and the side edges of the box space structure 31 are provided with chamfers. The box space structure 31 herein is a hole formed on the box bridge body 3. The outer end part of the broken line cantilever 1 is lower, the end part close to one side of the box bridge main body 3 is higher, and a large chamfer angle is arranged at the box girder position corresponding to the side surface of the box space structure 31, so that the main reinforcement anchoring space of the cantilever is increased. That is, the side surfaces of the fold line cantilever 1 and the box space structure 31 are additionally provided with chamfer angles, and the chamfer angles are provided with diagonal reinforcing bars, so that force transmission is smooth, and stress concentration is avoided.

The anti-collision wall 2 is arranged on the box-type bridge main body 3, a first groove is formed in the top of the anti-collision wall 2 and towards one side of the broken line cantilever 1, the first groove is L-shaped, a second groove is formed in the top of the sleeper beam 11 and towards one side of the broken line cantilever 1, a railing 6 is further arranged on the upper portions of the anti-collision wall 2 and the sleeper beam 11, and two sides of the movable cover plate 12 are movably arranged on the upper portions of the first groove and the second groove respectively. The anti-collision wall 2 is a concrete member disposed on a side of the pavement near the box bridge main body 3, and the member should be disposed on the box bridge main body 3, not on the broken line cantilever 1, so as to relieve the stress of the broken line cantilever 1. The folding line cantilever box-shaped structure is improved by improving a conventional anti-collision wall 2, an L-shaped first groove is formed in the top of the anti-collision wall 2, and the first groove is used according to the thickness of the movable cover plate 12, so that the movable cover plate 12 of a sidewalk can be conveniently placed. Meanwhile, a pavement guard rail may be disposed at the top of the anti-collision wall 2. The anti-collision protection device has the advantages of playing a role in preventing vehicles from collision, protecting the safety of pipelines and supporting the pavement cover plate. The movable cover plate 12 is a cover plate arranged between the sleeper beam 11 and the anti-collision wall 2, and the structure adopts a prefabricated structure, is installed in a blocking manner, can be opened, is convenient for overhauling the pipeline, and can be used as a pedestrian path for carrying pedestrians to pass through.

Referring to fig. 1, the broken line cantilever 1 is disposed on one side of the box bridge body 3, and a conventional cantilever is disposed on the other side of the box bridge body 3, and it should be noted that the broken line cantilever 1 may be disposed on two sides of the box bridge body 3.

Referring to fig. 2, the steel plate structure 5 is pre-buried in the upper portion of the broken line cantilever 1, a base 14 for fixing the pipe 13 is disposed above the steel plate structure 5, and the base 14 is fixedly connected with the pipe 13. It should be noted that, the base 14 refers to a fixing seat disposed at an upper portion of the broken line cantilever 1, and is used for fixing a pipeline in the pipeline 13, and may be a pipeline matching device. The steel plate structure 5 is a steel plate which is pre-buried at the top of the broken line cantilever 1 and is poured together with the broken line cantilever 1, and the steel plate structure is used as a connecting structure of the base 14, and the base 14 can be welded with the steel plate structure 5, so that the installation is convenient.

The reinforced concrete structure comprises anchor bars 41, and the anchor bars 41 are welded with the steel plate structure 5. The anchor bar 41 is an anchor bar 41 for fixing the steel plate structure 5, the anchor bar 41 is welded with the steel plate structure 5 firmly, and is pre-embedded in the concrete of the fold line cantilever 1 as a whole, so as to fix the steel plate structure 5 and transfer the dynamic load of the pipeline to the concrete structure.

The reinforced concrete structure comprises U-shaped anchor bars 42 and box girder steel bars 43, the U-shaped anchor bars 42 are respectively arranged at the connection parts of the sleeper beams 11 and the anti-collision wall 2 and the box bridge main body 3, the box girder steel bars 43 are arranged along the box bridge main body 3, the box girder steel bars 43 are provided with a plurality of rows, the lower ends of the U-shaped anchor bars 43 below the sleeper beams 11 are hooped with the box girder steel bars 43 at the lower edges of the folding line cantilever 1, the lower sides of the anti-collision wall 2 are also provided with anchor point steel bars 44, and the lower ends of the U-shaped anchor bars 42 are hooped with the box girder steel bars 43 and the anchor point steel bars 44. It should be noted that, the U-shaped anchor bar 42 is an embedded part, the U-shaped anchor bar 42 refers to a connection reinforcing bar between the sleeper beam 11 and the anti-collision wall 2 and the box bridge main body 3, and the lower end of the U-shaped anchor bar 42 hoops the box beam reinforcing bar 43, so as to ensure firm connection. The lower ends of the U-shaped anchor bars 42 below the sleeper beams 11 are hooped with the box beam reinforcing bars 43 at the lower edge of the broken line cantilever 1, and the lower ends of the U-shaped anchor bars 42 are hooped with the box beam reinforcing bars 43 and the anchor point reinforcing bars 44, so that the anchoring reliability can be increased.

The reinforced concrete structure comprises a reinforced inclined rib 45, the reinforced inclined rib 45 is arranged at the bending part of the folding line cantilever 1 and the box girder main body 3, hooks are arranged at two ends of the reinforced inclined rib 45, and the hooks hook the upper edge of the box girder main body 3 and the lower edge of the folding line cantilever 1 respectively. It should be noted that, the reinforcing diagonal ribs 45 are disposed at the fold line where the fold line cantilever 1 is connected with the box bridge main body 3, and are different from the conventional straight line cantilever, and are diagonally disposed double shear-resistant reinforcing bars. The ends of the reinforcing inclined ribs 45 hook the box girder steel bars 43 to form firm connection, and the shearing resistance of the ends of the broken line cantilever 1 is improved.

The reinforced concrete structure comprises main ribs 46, the main ribs 46 are arranged around the broken line cantilever 1, the edges of the broken line cantilever 1 and the box girder steel bars 43 at the side edges of the box space structure 31 are hooped by the main ribs 46, and the main ribs 46 form a closed structure. It should be noted that, the main rib 46 is a transverse main rib 46 disposed on the fold line cantilever 1, and is different from a traditional separated steel bar, and is configured into a closed steel bar, so as to hoop the box girder steel bar 43 to form a closed whole, increase the anchoring effect of the steel bar, and avoid the whole pulling-out damage of the steel bar due to the too short anchoring length.

Referring to fig. 3, the reinforced concrete structure includes a prestressed reinforcement 47, the prestressed reinforcement 47 is disposed inside the broken line cantilever 1, the prestressed reinforcement 47 is disposed through the length direction of the broken line cantilever 1, two ends of the prestressed reinforcement 47 are provided with a staggered device 471, one side of the prestressed reinforcement 47, which is close to the box-type space structure 31, is a tensioning end, and the other side is an anchoring end. The prestressed reinforcement 47 refers to a transverse prestressed reinforcement 47 disposed in the broken line cantilever 1, and the prestressed reinforcement is stretched to provide a pre-stress for the structure, so as to improve the bearing capacity of the broken line cantilever 1 and the anchoring capacity with the box bridge main body 3. The prestressed reinforcement 47 applies prestress by a post-tensioning method of pre-burying the pipeline 13, pouring concrete and then stretching by a beam. After tensioning to the design tonnage, the prestressed reinforcement 47 is anchored, and the tensioning notch is anchored.

The reinforced concrete structure comprises stirrups 48, the box space structure 31 is further provided with side webs, the stirrups 48 are arranged at the edges of the side webs, and the stirrups 48 stirrup the side webs and the box girder steel bars 43 at the side edges of the box space structure 31 to form a closed structure.

The reinforced concrete structure further comprises tie bars 49, the tie bars 49 are arranged inside the broken line cantilever 1 at intervals and are arranged along the same direction, the two ends of the tie bars 49 are provided with hook structures, and the hook structures are connected with the box girder steel bars 43 at the upper edge and the lower edge of the broken line cantilever 1 so as to strengthen the shearing bearing capacity of the broken line cantilever 1.

The folding line cantilever box-shaped structure improves the traditional box-shaped section, the cantilever arm is moved downwards by adjusting the position of the cantilever arm to form a folding line section, and various pipelines can be arranged in a sufficient space to meet the clearance requirements of Cheng Guanxian with large diameter and different designs. The movable cover plate 12 can be opened by arranging the sidewalk plate, so that the movable cover plate is convenient for later maintenance. The cantilever position box girder section sets up big chamfer, satisfies reinforcing bar anchoring length, to the sectional specificity, has adopted the reinforcement form of adaptation, through the mode of stretching out thick steel bar in the cantilever, provides precompression for the cantilever, makes cantilever and box girder firm in connection, better satisfies the atress demand, and application scope is wider.

In sum, according to the folding line cantilever box-shaped structure, the cantilever with the box-shaped section is downwards moved to be different from the bridge deck, so that the folding line is formed, the problem of insufficient clearance of the pavement when a large-diameter pipeline passes through the bridge is solved, the height of the anti-collision wall 2 is reduced, materials are saved, and the permeability of the bridge deck is increased; by arranging the base 14 and the pipeline 13, the problem of pipeline bridge crossing under the condition of different design elevations of pipelines and bridge decks is solved; the whole stability of the folding line cantilever box structure is reinforced by arranging the reinforcing diagonal ribs 45, the prestressed reinforcing bars 47, the U-shaped anchor bars 42, the box girder reinforcing bars 43 and the connection mode in the box section of the folding line cantilever 1.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. A fold line cantilever box configuration for pipeline bridging, comprising: broken line cantilever, anticollision wall, the anticollision wall sets up in the both sides of box bridge main part, the broken line cantilever follow box bridge main part one side extends to the outside, just the broken line cantilever is less than the bridge floor setting, the anticollision wall sets up the broken line cantilever is inboard, the broken line cantilever outside is provided with the sleeper beam, the anticollision wall with can set up the fly leaf that can supply the pedestrian to walk between the sleeper beam, anticollision wall, sleeper beam and fly leaf is formed with cavity structure, cavity structure runs through box bridge main part total length, can set up the pipeline that can supply the pipeline to pass in the cavity structure, the broken line cantilever with box bridge main part junction is provided with reinforced concrete structure and steel sheet structure.

2. The fold line cantilever box structure for pipeline bridging according to claim 1, wherein the box bridge body is provided with a box space structure and a plurality of webs, the box space structure is divided by a plurality of webs, and the sides of the box space structure are provided with chamfers.

3. The folding line cantilever box-shaped structure for pipeline passing according to claim 1, wherein the anti-collision wall is arranged on the box-shaped bridge main body, a first groove is formed in the top of the anti-collision wall and towards one side of the folding line cantilever, the first groove is L-shaped, a second groove is formed in the top of the sleeper beam and towards one side of the folding line cantilever, a railing is further arranged on the anti-collision wall and the upper portion of the sleeper beam, and two sides of the movable cover plate are respectively and movably arranged on the upper portions of the first groove and the second groove.

4. The folding cantilever box structure for pipeline bridging according to claim 1, wherein the steel plate structure is pre-buried on the upper part of the folding cantilever, a base for fixing the pipeline is arranged above the steel plate structure, and the base is fixedly connected with the pipeline.

5. The broken line cantilever box construction for pipeline bridge according to claim 4, wherein the reinforced concrete structure comprises anchor bars welded to the steel plate structure.

6. The folding line cantilever box structure for pipeline passing according to claim 2, wherein the reinforced concrete structure comprises a U-shaped anchor bar and a box girder steel bar, the U-shaped anchor bar is respectively arranged at the connection parts of the sleeper beam, the anti-collision wall and the box girder main body, the box girder steel bar is arranged along the box girder main body, the box girder steel bar is provided with a plurality of rows, the lower end of the U-shaped anchor bar below the sleeper beam hoops the box girder steel bar at the lower edge of the folding line cantilever, the lower side of the anti-collision wall is also provided with an anchor point steel bar, and the lower end of the U-shaped anchor bar hoops the box girder steel bar and the anchor point steel bar.

7. The folding line cantilever box-type structure for pipeline passing according to claim 6, wherein the reinforced concrete structure comprises a reinforcing diagonal bar, the reinforcing diagonal bar is arranged at the bending part of the folding line cantilever and the box-type bridge main body, hooks are arranged at two ends of the reinforcing diagonal bar, and the hooks hook the box girder steel bars at the upper edge of the box-type bridge main body and the lower edge of the folding line cantilever respectively.

8. The line bridge box construction of claim 6, wherein the reinforced concrete structure includes a main rib disposed around the line cantilever and hooping the line cantilever edge and the box girder bars at the sides of the box space structure, the main rib forming a closed structure.

9. The broken line cantilever box-type structure for pipeline bridge according to claim 2, wherein the reinforced concrete structure comprises prestressed reinforcement, the prestressed reinforcement is arranged inside the broken line cantilever, the prestressed reinforcement penetrates through the length direction of the broken line cantilever, the two ends of the prestressed reinforcement are provided with staggered devices, one side, close to the box-type space structure, of the prestressed reinforcement is a tensioning end, and the other side is an anchoring end.

10. The broken line cantilever box construction according to claim 6, wherein the reinforced concrete structure comprises stirrups, the box space structure is further provided with side webs, the stirrups are provided at edges of the side webs, and the stirrups hoop the side webs and the box girder steel bars at sides of the box space structure to form a closed structure.